U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY Beaches of Pinellas County, Florida: A History of their Comings and Goings (circa 1850 present) by William A. Loeb, PE 1 Open-File Report 94-565 This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government. * Center for Coastal Geology and Regional Marine Studies 600 Fourth Street South St. Petersburg, FL 33701
104
Embed
Beaches of Pinellas County, Florida: A History of their Comings and ...
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
U.S. DEPARTMENT OF THE INTERIOR U.S. GEOLOGICAL SURVEY
Beaches of Pinellas County, Florida:A History of their Comings and Goings
(circa 1850 present)
by
William A. Loeb, PE 1
Open-File Report 94-565
This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial standards or with the North American Stratigraphic Code. Any use of trade, product or firm names is for descriptive purposes only and does not imply endorsement by the U.S. Government.
* Center for Coastal Geology and Regional Marine Studies 600 Fourth Street South St. Petersburg, FL 33701
TABLE OF CONTENTS
i. Introductionii. Plates
ii.-l. Pinellas Beaches Land cover - 1950 ii.-2. Pinellas Beaches Land cover - 1982
CHAPTERS 1-14 History of Islands and Passes
ISLANDS PASSES
I. Honeymoon Island
3. Caladesi Island
5. Clearwater Beach Island
7. Sand Key
9.Treasure Island
II. Long Key
13. Mullet Key
APPENDIX
A-I. Beach Renourishment Sand SourcesA-IL Artificial ReefsA-DI. Hurricane ListA-IV. ReferencesA-V. Sources of InformationA-VI. Aerial Photos AvailableA-VII. Pinellas Comprehensive Plan
2.Hurricane Pass
4.Dunedin Pass
6.Clearwater Pass
SJohns Pass
lO.Blind Pass
12.Passe-a-Grille/Bunces Pass/ The Reefs/Shell Key
14.Egmont Channel
A.1 A.5 A.9 A. 13 A. 15 A. 16 A. 17
PAGES
I.1 2.1 3.1 4.1 5.1 6.1 7.1 8.1 9.1
10.1II.1 12.1
13.114.1
i. INTRODUCTION
This report summarizes the chronology and treatment of the Pinellas County Gulf Beaches and Passes. Information was drawn from available published sources and discussion with knowledgeable individuals. More important than in-depth detail is the presentation of a large amount of diverse but pertinent information in one con sistent and concise format.
The central theme is a listing in chronological form of the history of each island and each pass. These lists are supplemented by selected aerial photos and matching coastal maps. A summary of the Corps of Engineers loca tion of a suitable source of sand for use in future projects is attached. Their exploration located in excess of 30 million cubic yards of suitable beach sand off Egmont Key. Future beach nourishment sand will come from pass maintenance dredging supplemented by this large Egmont Key channel source.
This study has tried to identify both volumes of sand added and/or removed and dollars expended. However, this data is spotty and should be considered illustrative at best, especially the dollar figures. We have identified approximately 9 million cubic yards of sand placed on the beaches over the years. This is in good balance with approximately 11 million cubic yards identified as removed for filling purposes. In addition, about 12 million cubic yards was placed offshore Egmont Channel.
The beach islands except for Honeymoon, Caladesi, and Mullet are almost fully developed. The future of the existing development is of interest, however, i.e. reconstruction after storm damage. It should be noted that the last big (100 year) hurricane was in 1921. The buildup has taken place since then, in the long calm after the storm.
Control over rebuilding after damage is in a formative stage. Incorporated municipalities are responsible within their borders, while the County Government is responsible for the unincorporated balance of the county. The Gulf shore consists mainly of 10 municipalities. To aid in planning, the County Departments of Civil Emergency Services and County Planning have prepared a Post-Disaster Redevelopment Guide expected to be finalized in 1994. It observes that "Pinellas County does not presently have institutional and decision-making structures concerned with questions of how the county rebuilds and develops following a disaster." The principal recommen dation is that the county and each municipality establish a post-disaster Redevelopment Task Force for this pur pose.
There is an established Coastal Construction Control Line, seaward of which construction is almost never allowed (Fla. Statutes Ch. 161). However, the present line runs essentially along the seawall and the landward edge of the beach. It serves to prevent building on the sand. Rebuilding is allowed on existing foundations so long as they do not require addition, repair, or modification. Control of building also comes under various Building Codes, Zoning Use Designations, and Federal Insurance Regulations.
This search has also identified numerous information sources, knowledgeable persons, reports, libraries, refer ences, etc. These are collected and listed in the Appendix of this report.
The two aerial / satellite derived maps (plates 1,2) show the land usage for the coastal area treated in this report. This "before and after" display is meant to show both the changes in usage and their effects on the islands, water ways, and vegetation. This can only be displayed through the color coding of these maps.
This report was initially prepared while the author was a volunteer with the U.S. Geological Survey's Center for Coastal Geology and Regional Marine Studies in St. Petersburg, FL. Presently, the USGS is conducting a study of the west-central Florida barrier island system, which includes Pinellas County, as well as Pasco county to the north and Hillsborough, Manatee and Sarasota Counties to the south. Guy Gelfenbaum and Tabatha Gleaton revised and edited this report.
PINELLAS COUNTY
Tarpon Springs
1. Honeymoon Island
2. Hurricane Pass 3. Caladesi Island 4. Dunedin Pass
5. Clearwater Beach Island
6. Clearwater Pass -
7. Sand Key
Indian Pass
Gulf of Mexico
Tampa Bay
8. Johns Pass J
9. Treasure Island
10. Blind Pass
11. Long Key .
12. Pass-A-Grille Pass .
Bunces Pass
13. Mullet Key 14. Egmont Channel -
Arrows mark Gulf Barrier Islands and Inlets
1. H
ON
EY
MO
ON
ISL
AN
D
STO
RM
DA
TED
ATE
1892
AU
TH
OR
ITY
IM
PRO
VEM
ENT
1921
(5
0 ye
ar)
1921
-26
City
1950
EA
SY
1963
Stat
e
Hon
eym
oon
& C
alad
esi w
ere
one
isla
nd k
now
n as
H
ogg
Isla
nd.
Hur
rican
e Pa
ss c
ut b
y hu
rric
ane.
Su
bseq
uent
ly w
iden
ed a
nd d
eepe
ned
until
192
6.
Cle
arw
ater
Cau
sew
ay b
uilt.
Hur
rican
e Pa
ss c
hang
e sl
owed
aft
er 1
926.
Dra
stic
sho
alin
g of
Hur
rican
e Pa
ss. P
ass
then
w
iden
ed to
196
3 w
ith e
rosi
on o
f Hon
eym
oon
&
Cal
ades
i Isl
ands
.
Hon
eym
oon
Isla
nd C
ause
way
bui
lt.
Hur
rica
ne P
ass
redu
ced
with
acc
retio
n on
H
oney
moo
n &
Cal
ades
i Isl
ands
.
SAN
D
vol,y
ards
CO
ST
1969
St
ate
Sout
h w
est b
each
Hon
eym
oon
Isla
nd ra
ised
to 1
.5m
abo
ve
1,14
0,00
0m
ean
sea
leve
l by
fillin
g fr
om a
site
450
yar
ds o
ffsh
ore
the
pass
. San
d w
ashe
d ou
t, le
avin
g pe
bble
s &
cob
bles
. So
me
groi
ns b
uilt
at s
ame
time.
1970
St
ate
Rip
-rap
pla
ced
on s
outh
end
Hon
eym
oon
Isla
nd.
1974
St
ate
Hon
eym
oon
acqu
ired.
to 1
980
"Not
hing
" do
ne to
198
0. D
id b
uild
par
k fa
cilit
ies
on
Cal
ades
i, ac
cess
and
impr
ovem
ents
on
Hon
eym
oon
Isla
nd.
1989
St
ate
1 m
ile o
f roc
ky b
each
in fr
ont o
f pav
ed p
arki
ng lo
t on
230,
000
1,30
0,00
0ce
ntra
l por
tion
of is
land
reno
uris
hed
with
san
d (tr
ucke
d fr
om m
ainl
and
exca
vatio
n pr
ojec
t). S
even
mon
ths
late
r 80
0' o
f sho
relin
e ba
dly
erod
ed.
Estim
ate
is 3
year
s lif
e.
1990
C
ty
Hur
rican
e Pa
ss m
aint
enan
ce d
redg
ing,
san
d pl
aced
on
300,
000
Hon
eym
oon
Isla
nd w
est o
f fer
ry la
ndin
g (n
ot o
n be
ach)
.
X £
3 3
1 H
ON
EY
MO
ON
IS
LAN
D t
o S
AN
D K
EY
|
US
CG
S C
hart
#1
77
1879
1.4
Hur
rica
ne P
ass
Exc
erpt
Fro
m N
OA
A C
hart
#11
411
'\ l
»
M, ' \.
l\C
'
i* *
^'rf
t W
^ *
***A
\*N
ivig
itio
n r
egul
atio
ns i
re p
ublis
hed
in C
hapt
er
2, U
.S.
Cois
t P
ilot
5, o
r w
eekl
y N
otic
e to
Mar
iner
s w
hich
inc
lude
new
or
revi
sed
regu
latio
ns.
Info
rma
tio
n co
ncer
ning
the
reg
ulat
ions
may
be
obta
ined
at
the
Offi
ce o
f th
e D
istr
ict
Eng
inee
r, C
orps
of
En
gine
ers
in J
acks
onvi
lle,
Flor
ida.
Anc
hora
ge r
egul
atio
ns m
ay b
e ob
tain
ed a
t th
e O
fiice
of
the
Com
man
der,
7th
Coa
st G
uard
Dis
tric
t m
Mia
mi.
Flor
ida.
Ref
er t
o se
ctio
n nu
mbe
rs s
how
n w
ith a
rea
desi
g<
natio
n
* 2'
e^^
i *
sf>
vi\ <
-"oil
* r°
^o
mp
, |4
J.|
r\l
V'.n
.'e'
' ?
. '
s>\&
'
PH
OT
O
CO
NT
INU
OU
S M
AR
INE
WE
AT
HE
R B
RO
AD
CA
ST
S
CIT
Y
ST
AT
ION
F
RE
O(M
Hz)
B
RO
AD
CA
ST
TIM
ES
Tam
pa. F
la.
KH
B-3
2 16
2.55
24 h
ours
dai
ly
(S3
2. H
UR
RIC
AN
E P
ASS
STO
RM
DA
TED
ATE
1892
AU
THO
RIT
Y
IMPR
OV
EMEN
TS
1921
(5
0 ye
ar)
1921
-26
City
1950
1960
1963
Stat
e
No
Pass
. Hon
eym
oon
& C
alad
esi
wer
e on
e is
land
kn
own
as H
ogg
Isla
nd.
Hur
rica
ne P
ass
cut b
y hu
rric
ane.
Su
bseq
uent
ly w
iden
ed a
nd d
eepe
ned
until
192
6.
Cle
arw
ater
Cau
sew
ay b
uilt.
Hur
rica
ne P
ass
chan
ge s
low
ed a
fter
1926
.
Dra
stic
sho
alin
g of
Hur
rican
e Pa
ss.
Pass
then
wid
ened
to 1
963
with
ero
sion
of H
oney
moo
n&
Cal
ades
i Isl
ands
.
Hur
rica
ne P
ass
2000
' wid
e/16
' dee
p.
Hon
eym
oon
Isla
nd C
ause
way
bui
lt. H
urri
cane
Pas
s re
duce
d w
ith a
ccre
tion
on H
oney
moo
n &
Cal
ades
i Is
land
s. N
ow 7
00' w
ide.
SAN
D
vol,y
ards
1969
St
ate
Sout
h w
est b
each
Hon
eym
oon
Isla
nd ra
ised
to 1
.5m
abo
ve
(1,1
40,0
00)
m
ean
sea
leve
l by
fillin
g fr
om a
site
450
yar
ds o
ffsh
ore
the
pass
. C
hann
el m
igra
ted
north
erly
unt
il by
197
6 w
idth
eq
uale
d ea
rly 1
920s
, but
loca
ted
cons
ider
ably
mor
e in
shor
e
1970
St
ate
Rip
-rap
pla
ced
on s
outh
end
Hon
eym
oon
Isla
nd.
1985
ELE
NA
W
illys
Cut
ope
ned
near
nor
th e
nd C
alad
esi.
(10
year
)
1986
N
orth
Will
ys C
ut o
pene
d.
1990
C
ty
Hur
rican
e Pa
ss m
aint
enan
ce d
redg
ing,
san
d to
be
plac
ed
300,
000
on H
oney
moo
n Is
land
wes
t of f
erry
land
ing
(not
on
beac
h).
NJ
NJ
2.3
3. C
AL
AD
ESI
ISL
AN
D
STO
RM
DA
TED
ATE
1892
AU
THO
RIT
Y
IMPR
OV
EM
EN
T
1921
(S
Oye
ar)
1950
1921
-26
City
1963
1966
Stat
e
Stat
e
No
Pass
. Hon
eym
oon
& C
alad
esi w
ere
one
Isla
nd
know
n as
Hog
g Is
land
.
Hur
rica
ne P
ass
cut b
y hu
rric
ane.
Su
bseq
uent
ly w
iden
ed a
nd d
eepe
ned
until
192
6.
Cle
arw
ater
Cau
sew
ay b
uilt.
Dra
stic
sho
alin
g of
Hur
rican
e Pa
ss.
Pass
then
wid
ened
to
196
3 w
ith e
rosi
on o
f Hon
eym
oon
& C
alad
esi I
slan
ds.
Hon
eym
oon
Isla
nd C
ause
way
bui
lt.H
urric
ane
Pass
red
uced
with
acc
retio
n on
Hon
eym
oon
& C
alad
esi I
slan
ds.
Now
700
' wid
e.
Cal
ades
i acq
uire
d.R
ecre
atio
n fa
cilit
ies
built
(Dat
e?) o
n ba
y si
de o
f key
.
SAN
D
vol.y
ards
CO
ST,$
Hur
rica
ne P
ass
Exc
erpt
Fro
m N
OA
A C
hart
#11
411
NO
TE A
Nav
igat
ion
regu
latio
ns a
re p
ublis
hed
In C
hapt
er
2, U
.S.
Coa
sl P
ilot
S. o
r w
eekl
y N
otic
e to
Mar
iner
s w
hich
inc
lude
new
or
revi
sed
regu
latio
ns,
info
rma
tio
n co
ncer
ning
the
reg
ulat
ions
may
be
obta
ined
at
the
Offi
ce o
l th
e D
istri
ct
Eng
inee
r, C
orps
of
En
gine
ers
in J
acks
onvi
lle,
Flor
ida.
Anc
hora
ge r
egul
atio
ns m
ay b
e ob
tain
ed a
t th
e O
ffice
ol
the
Com
man
der,
7lh
Coa
sl G
uard
Dis
tric
t In
Mia
mi,
Flor
ida.
Ref
er t
o se
ctio
n nu
mbe
rs s
how
n w
ith a
rea
desi
g
natio
n.
SIL^
-*""
"^ .
/Z
L \
v.^-
0_3i
o"^
1!>
i5*°
sP2$
~^
»»?>
i J®
^
.CS
NrM
CIT
Y
STA
TIO
N
FR
EQ
(MH
z)
BR
OA
DC
AS
T T
IME
S
1985
Elen
a
Will
ys C
ut o
pene
d ne
ar n
orth
end
Cal
ades
i. H
as c
ontin
ued
to
(10
yr)
enla
rge
no
w 3
m d
eep
at h
igh
tide.
Dun
edin
Pas
s cl
osed
1986
Nor
th W
illys
Cut
ope
ned
by e
rosi
on in
fall
'86
100m
nor
thof
Will
ys C
ut.
Now
3m
dee
p.
1992
Will
ys c
uts
have
mer
ged
into
a s
ingl
e m
ajor
cut
.
CO
NO
CO en
Hur
rica
ne P
ass
Exc
erpt
Fro
m N
OA
A C
hart
#11
411
Niv
lgtll
on r
egul
atio
ns a
rt p
ublis
hed
In C
hapt
er
2. U
.S.
Coa
st P
ilot
5, o
r w
eekl
y N
one*
lo
Mar
iner
s w
hich
incl
ude
n«w
or
revi
sed
regu
latio
ns.
Info
rma
tio
n co
ncer
ning
the
reg
ulat
ions
may
be
obta
ined
al
me
Offi
ce o
l th
t D
istri
ct
Eng
inee
r. C
ores
ol
En
gine
ers
In J
acks
onvi
lle,
Flor
ida.
Anc
hora
ge r
egul
atio
ns m
ay b
e ob
tain
ed a
l Ih
e O
ffice
of t
he C
omm
ande
r. ?t
h C
oast
Gua
rd D
istr
ict
CO
NT
INU
OU
S M
AR
INE
WE
AT
HE
R B
RO
AD
CA
ST
S
CIT
Y
ST
AT
ION
F
RE
Q(M
Hz)
B
RO
AD
CA
ST
TIM
ES
Tam
pa, F
la.
KHB-
32
162.
55
24 h
ours
dai
ly
3.6
4. D
UN
ED
IN P
ASS
ibur
g
STO
RM
DA
TED
ATE
1883
AU
THO
RIT
Y
IMPR
OV
EMEN
TSSA
ND
vo
l.yar
dsC
OST
,$
1883
-192
0
1921
(S
Oye
ar)
1921
-26
City
Dun
edin
Pas
s (k
now
n as
Big
Pas
s, w
idth
0.7
km)
wid
e op
en, t
he p
redo
min
ant i
nflu
ence
on
Cle
ar w
ater
Bay
St
. Jos
eph
Soun
d tid
al a
rea.
Cle
arw
ater
Pas
s (k
now
n as
Li
ttle
Pass
, wid
th 0
.17k
m,
1/2
the
pres
ent w
idth
).
Shoa
ling
of D
uned
in P
ass
(due
to C
lear
wat
er P
ass
incr
easi
ng
in w
idth
, div
ertin
g flo
w f
rom
Dun
edin
Pas
s tid
al p
rism
?)
From
188
3-19
50 C
lear
wat
er B
each
Isla
nd n
orth
end
mig
rate
d N
orth
onl
y 1/
4 m
ile; b
y 19
70 h
ad n
early
clo
sed
the
gap;
by
1976
had
mov
ed 3
/4 m
ile; b
y m
id 1
980s
pas
s pl
ugge
d.
Hur
rica
ne P
ass
form
ed, f
urth
er d
iver
ting
flow
fro
m
Dun
edin
Pas
s. C
ause
d sh
oalin
g an
d fo
rmat
ion
of lo
ng
curv
ed c
hann
el.
Cle
arw
ater
Cau
sew
ay b
uilt,
par
tially
isol
atin
g D
uned
in
Pass
. D
uned
in P
ass
wid
th in
crea
sed
but m
igra
tion
cont
inue
d.
Cle
ar-w
ater
Pas
s "n
arro
wed
mar
kedl
y".
Sept
. 1-
7 19
50
1950
-58
1960
1963
Pvt.
CO
E
Stat
e
City
1968
GLA
DY
S
1972
AG
NES
1985
ELE
NA
19
85
1986
OCT
.
Dep
osite
d sh
oal m
ater
ial i
n D
uned
in P
ass
whi
ch la
ter
was
hed
asho
re a
nd fo
rmed
bar
sys
tem
, lea
ving
pas
s at
pr
e-st
orm
dim
ensi
on.
Dre
dge
& fi
ll fo
r Isl
and
Esta
tes
Dev
elop
men
t (Ph
ase
1).
Red
uced
Dun
edin
Pas
s tid
al p
rism
. D
uned
in P
ass
narr
owed
and
leng
then
ed.
Cle
arw
ater
Pas
s dr
edge
d (1
0* d
eep
x 15
0* w
ide)
. In
land
wat
erw
ay d
redg
ed th
roug
h C
lear
wat
er H
arbo
r.
Hon
eym
oon
Isla
nd C
ause
way
bui
lt, is
olat
ing
Dun
edin
Pa
ss fu
rther
. H
urric
ane
Pass
now
car
ried
bulk
of t
his
pris
m.
Cle
arw
ater
Pas
s B
ridge
bui
lt. C
lear
wat
er P
ass
mai
n-
tene
nce
dred
ging
initi
ated
.
A s
mal
l add
ition
al c
hann
el d
evel
oped
abo
ut l
/2m
i so
uth
of D
uned
in P
ass.
By
the
early
197
0s th
is s
mal
l ch
anne
l had
clo
sed.
Bef
ore
Elen
a, D
uned
in P
ass
was
dow
n to
wid
th o
f und
er
lOO
yard
s/max
dep
th 6
'. D
uned
in P
ass
clos
ed g
radu
ally
by
shoa
l- lin
g af
ter
Elen
a. C
lose
d co
mpl
etel
y by
sum
mer
198
8.
Com
pute
r mod
el a
naly
sis
of p
rism
s by
USF
/Tam
pa
Ctr.
of M
ath
Mod
els.
in '
86
Dun
. Pas
s En
larg
ed to
30
00 sq
. ft.
Cle
arw
ater
Pas
s 91
0 m
ill c
u. ft
. 86
5 H
urric
ane
Pass
34
8 34
6 D
uned
in P
ass
83 (
will
clo
se)
166
ro
CO
1986
KA
TE19
89-9
0 C
ty (
City
) Pr
opos
al to
reop
en D
uned
in P
ass
(silt
ed c
lose
d) d
enie
d 1,
300,
000
by S
tate
DER
. N
ew p
ropo
sal b
eing
mad
e to
exc
avat
e ne
w p
ass
(9'd
eep
x 10
0 ' w
ide)
loca
ted
at s
ite o
f 19
68
tem
pora
ry c
hann
el 1
/2 m
ile s
outh
acr
oss
narr
ow n
eck
of
Cle
arw
ater
Bea
ch Is
land
1991
Jan
20
Dun
edin
Pas
s re
open
ed a
fter s
ever
e st
orm
.C
lose
d ag
ain
shor
tly la
ter
1992
C
ontin
ues
clos
ed.
4.4
4.5
Dun
edin
Pas
sEx
cerp
t Fro
m N
OA
A C
hart
#114
11
ist p
reve
nt b
eing
cap
size
d or
blo
wn
to le
ewar
d In
t
Ul
5. C
LE
AR
WA
TE
R B
EA
CH
ISL
AN
D
STO
RM
DA
TE
Sept
. 1-
7,
1950
DA
TE
1921
-26
1949
1950
1952
1950
-58
1960
1961
Aim
City
City
Pvt.
City
City
Pvt.
CO
E
City
AU
THO
RIT
Y
IMPR
OV
EMEN
TS
Cle
arw
ater
Cau
sew
ay b
uilt.
Sand
add
ed o
n so
uth
end
publ
ic b
each
.
Sand
add
ed o
n pv
t pro
pert
y to
sou
th.
2 gr
oins
at s
outh
ern
end
of p
ublic
pro
perty
500'
con
e, p
ier/
groi
n (3
00' o
f con
e, s
lab
baff
les.
)
Dre
dge
& fi
ll fo
r Isl
and
Esta
tes
Dev
elop
men
t (Ph
.l).
Cle
arw
ater
Pas
s dr
edge
d.
7 gr
oins
SAN
D
vol,y
ards
CO
ST,$
30,0
00
5,00
0
120,
000
12,0
00
42,0
00
40,0
00
1963
C
ity
Add
ition
al c
one,
baf
fle p
ier g
roin
.
5,50
0
Cle
arw
ater
Pas
s B
ridge
bui
lt.
"Con
side
rabl
e am
ount
" of
nib
ble
fill p
lace
d at
so
uth
end
of p
ublic
pro
perty
nea
r Cle
arw
ater
Pas
s.
1990
Jt.
Ex
pect
mai
nten
ance
of $
15,0
00/y
ear.
Prop
ose
to re
build
Cle
arw
ater
Bea
ch fo
r 0.7
6mile
s.N
o da
te.
240,
000
1,10
0,00
0
on fo
£-9
U«i
i^S
^*''''
i'ii''
*t"*'
"_^i
«^*"
""*^
- «
»'
'.;
\ "V
-'tf
ip'V
' *
' '*
'!'/ '
'' >
«
i
JH
MIC
SPE
ED
SCA
LE v
g7
t.9
1
0"5
'.
20
23
30.
. . I..
..-
....
. I.
..J
..JaLl....l.J
anyy
nltj.
and
tfia
othe
r^on
mru
tnin
. With
out c
hang
ing
dhrid
er jp
rwd^
'pfa
c«
Exam
ple:
with
4.6
Kau
tteSm
ites
njn
In 1
5 m
lnui
ea, m
a tp
acd
la 1 6
.6 *(
noB
CLE
AR
WA
TE
R B
EA
CH
IS
LA
ND
NO
AA
Ch
art
#11411
6. C
LE
AR
WA
TE
R P
ASS
STO
RM
DA
TED
ATE
1883
AU
THO
RIT
Y
IMPR
OV
EMEN
TSSA
ND
vo
l.yar
ds
1883
-192
0
1921
(S
Oye
ar)
1921
-192
6C
ity
Cle
arw
ater
Pas
s (k
now
n as
Litt
le P
ass,
wid
th 0
.17k
m,
1/2
the
pres
ent w
idth
). D
uned
in P
ass(
know
n as
Big
Pa
ss.,
wid
th 0
.7km
) th
e pr
edom
inan
t tid
al in
flue
nce
on
Cle
arw
ater
Bay
-St.
Jose
ph S
ound
.
Cle
arw
ater
Pas
s in
crea
sing
in w
idth
as
Dun
edin
Pas
s sh
oale
d.
Hur
rican
e Pa
ss f
orm
ed.
Cle
arw
ater
Cau
sew
ay b
uilt,
par
tially
isol
atin
g C
lear
wat
er P
ass
from
Dun
edin
Pas
s. D
uned
in P
ass
wid
ened
but
mig
rate
d no
rth.
By
1926
Cle
arw
ater
Pas
s ha
d w
iden
ed to
1.4
km.
Then
"n
arro
wed
mar
kedl
y" to
100
0 ft
in 1
973.
CO
ST,$
1924
(27?
)C
OE
Indi
an P
ass
clos
ed b
y fil
ling.
Sept
. 1-6
, 19
50
1950
-195
8 Pv
t.
1960
C
OE
1961
-196
3 C
OE
1963
St
ate
1963
1963
City
City
1968
GLA
DY
S
1965
1969
CO
E
CO
E
1970
Dep
osite
d sh
oal m
ater
ial i
n D
uned
in P
ass,
late
r ret
urne
d to
pre
-sto
rm d
imen
sion
.
Dre
dge
& fi
ll fo
r Isl
and
Esta
tes
Dev
elop
men
t (Ph
i).
Dun
edin
Pas
s na
rrow
ed a
nd le
ngth
ened
.
Cle
arw
ater
Pas
s dr
edge
d (1
0 de
ep x
150
' w
ide)
.
Dre
dged
Intr
acoa
stal
Wat
erw
ay.
Hon
eym
oon
Isla
nd C
ause
way
bui
lt. N
o si
gnif
ican
t inf
luen
ce
on C
lear
wat
er P
ass
tidal
pris
m.
Cle
arw
ater
Pas
s br
idge
bui
lt. C
lear
wat
er P
ass
mai
nten
ance
dr
edgi
ng in
itiat
ed.
"Con
side
rabl
e am
ount
" of
rubb
le f
ill p
lace
d at
sou
th e
nd o
f pu
blic
bea
ch p
rope
rty
near
Cle
arw
ater
Pas
s.
Expe
ct m
aint
enan
ce o
f $15
,000
/yea
r.
Mai
nten
ance
dre
dgin
g of
Intr
acoa
stal
Wor
ld W
ar c
hann
el.
Cle
arw
ater
Pas
s m
aint
enan
ce d
redg
ing.
Mat
eria
l fro
m '6
0,'6
7 &
'69
Cle
arw
ater
Pas
s dr
edgi
ngs
(320
,822
) pu
mpe
d to
four
sub
mer
ged
disp
osal
are
as, o
ne s
outh
of t
he
entra
nce
chan
nel a
nd th
ree
flan
king
the
bay
chan
nel.
Cle
arw
ater
Pas
s na
rrow
ing
& d
eepe
ning
as
Sand
Key
mov
edno
rth
agai
nst t
he h
arde
ned
sout
h en
d of
Cle
arw
ater
Bea
chIs
land
.B
y la
te 1
980'
s ha
d un
derm
ined
bri
dge
supp
orts
.
s
CO
1972
AG
NES
1973
-197
4 C
OE
1975
C
ity
1977
1981
1980
-198
1
CO
E
City
City
1981
-198
4C
ity
1985
EL
EN
A
1986
KA
TE
Cle
arw
ater
Pas
s m
aint
enan
ce d
redg
ing.
Mat
eria
l pla
ced
on
(126
,000
) no
rth
end
Sand
Key
.
Cle
arw
ater
Pas
s jet
ty s
outh
sid
e bu
ilt,
1280
m lo
ng.
Fixe
d 2,
500,
000
wid
th a
t 14
00'.
At s
ome
time
in h
ere
seaw
alls
wer
e bu
ilt to
ha
rden
the
sout
h sh
ore
of C
lear
wat
er P
ass.
Thi
s pr
even
ted
Cle
arw
ater
Pas
s fr
om e
rodi
ng n
orth
war
d. P
ass
then
nar
row
ed
and
deep
ened
unt
il in
the
80's
Cle
arw
ater
Pas
s B
ridg
e su
ppor
ts w
ere
unde
rmin
ed a
nd s
ettle
d 1 f
t.
Cle
arw
ater
Pas
s m
aint
enan
ce d
redg
ing.
Mat
eria
l pla
ced
on
(186
,000
) no
rth e
nd S
and
Key
.
Cle
arw
ater
Pas
s jet
ty n
orth
sid
e bu
ilt,
168m
long
.
City
acq
uire
d hy
drau
lic d
redg
e an
d to
ok o
ver C
lear
wat
er
Pass
mai
nten
ance
dre
dgin
g. M
ater
ial p
lace
d on
2 m
iles
of
Sand
Key
bea
ch ju
st s
outh
of C
lear
wat
er P
ass.
Dre
dge
prov
ed
too
light
, may
no
long
er b
e in
use
?
(600
,000
)
Cle
arw
ater
Pas
s m
aint
enan
ce d
redg
ing.
Mat
eria
l pla
ced
on C
lear
wat
er B
each
Isla
nd a
nd to
fill
scou
r hol
es a
roun
d C
lear
wat
er P
ass
Bri
dge
abut
men
ts.
Cle
arw
ater
Pas
s no
w 8
.5'd
eep
x 13
00 '
wid
e.
(350
,000
)
6.4
6.5
Cle
arw
ater
Pas
sE
xcer
pt F
rom
NO
AA
Cha
rt #
1141
1
NO
TE
H
CLE
AR
WA
TE
R P
AS
S
The
contr
olli
ng d
epth
was
7 (
eel
lor
a w
idin
ol
150
feel
fr
om
me
Gull
10
me
high
way
ba
scul
e br
idge
, th
ence
6 '
ee
l lo
r a
wid
th o
l 10
0 (e
el
10 a
ju
nct
ion w
ith t
he I
nlra
coa
sla
l W
ater
way
.
Feb
-Mar
196
4
7. S
AN
D K
EY
STO
RM
DA
TE
1848
(lO
Oye
ar)
1921
(5
0yea
r)
DA
TEA
UTH
OR
ITY
IM
PRO
VEM
ENTS
1892
-194
3
1924
(27?
)C
OE
SAN
D
vol,y
ards
John
s Pa
ss "
repo
rted
" cu
t by
seve
re tr
opic
al s
torm
Nor
th e
nd (
3km
) m
igra
ted
tow
ard
bay
up tw
o 0.
7km
at C
lear
wat
er P
ass.
Indi
an P
ass
clos
ed b
y fil
ling,
join
ing
uppe
r San
d K
ey to
lo
wer
bea
ches
. R
epor
tedl
y "I
ndia
ns f
orm
erly
fis
hed
here
".
[Loc
ated
at t
he to
wn
line
betw
een
Indi
an s
hore
s an
d R
edin
gton
Sho
res.
] C
lose
d to
alle
viat
e sh
oalin
g pr
oble
ms
in th
e In
trac
oast
al W
ater
Way
nea
r The
Nar
row
s. B
etw
een
1879
and
1926
ent
ry to
Indi
an P
ass
had
mov
ed n
orth
erly
ab
out
l/3m
ile e
ither
nat
ural
ly o
r by
filli
ng.(S
ee a
lso
1985
ite
m fo
r Red
ingt
on S
hore
s B
reak
wat
er.)
CO
ST,$
BE
FOR
E
1950
Seaw
alls
/gro
ins
alon
g no
rth
end.
Sept
. 1-
7 19
50
1968
GLADYS
1972 AGNES
1950-1957
1957
1960
1961
1961
1966
1969
1973
1975
1974
Pvt.
Mad
eira
B
each
Mad
eira
B
each
.
Mad
eira
B
each
.
Mad
eira
B
each
.
CO
E
CO
E
CO
E
CO
E
Cle
arw
ater
CO
E
Seaw
alls
, tim
ber b
ulkh
eads
alo
ng "
entir
e sh
ore"
.
37 ti
mbe
r pile
& p
anel
gro
ins
(210
' lon
g, 3
00' a
part)
al
ong
sout
hern
end
San
d K
ey.
Stor
med
-cau
sed
brea
kthr
ough
sou
th o
f Cle
arw
ater
Pas
s, c
lose
d sh
ortly
.
John
s Pa
ss d
redg
ed.
Kin
g pi
le a
ncho
r gro
in (
500'
) no
rth
side
of J
ohns
Pas
s.
30,0
00
300,
000
Fill
from
Joh
ns P
ass
plac
ed n
orth
of g
roin
.
Ann
ual m
aint
enan
ce o
f gro
in s
yste
m @
$10
,000
.
John
s Pa
ss d
redg
ed(1
0'de
ep x
500
' w
ide
;8'd
eep
x 10
0 ' w
ide
;6'd
eep
x10
0 ' w
ide)
to In
trac
oast
al.
Indi
an R
ocks
Bea
ch (
Indi
an S
hore
s?)
5,50
0'
143,
000
856,
000
emer
genc
y fil
led
from
Intr
acoa
stal
.
Indi
an R
ocks
Bea
ch(&
Ind
ian
Shor
es?)
5 m
iles
400,
000
1,67
7,60
0 em
erge
ncy
fille
d fr
om In
trac
oast
al &
off
shor
e.
Follo
w-o
n m
aint
. to
loca
l int
eres
ts.
Cle
arw
ater
Pas
s dr
edgi
ng m
ater
ial p
lace
d on
nor
ther
n 12
6,00
0 en
d of
San
d K
ey.
Cle
arw
ater
Pas
s je
tty o
n so
uth
side
Cle
arw
ater
Pas
s,
2,50
0,00
0 12
80m
long
.
Cle
arw
ater
Pas
s m
aint
enan
ce d
redg
ing.
Bea
ch
126,
000
disp
osal
sou
th s
ide
of P
ass.
o
CO
1977
CO
E
1985
ELE
NA
(lO
year
)
1980
-198
1 C
lear
wat
er
1985
Spr
ing
CO
E
1987
Mad
eira
B
each
.
CO
E
1987
1989
Cle
arw
ater
Cle
arw
ater
Pas
s m
aint
enan
ce d
redg
ing.
Bea
ch
186,
000
disp
osal
sou
th s
ide
of P
ass.
Cle
arw
ater
Pas
s m
aint
enan
ce d
redg
ing
fill p
lace
d 60
0,00
0 on
2 m
iles
of b
each
just
sou
th o
f Cle
arw
ater
Pas
s.
Red
ingt
on S
hore
s of
fsho
re s
tone
bre
akw
ater
, 300
' ou
t, 40
0' l
ong,
san
d fil
l bet
wee
n be
ach
& b
reak
w
ater
-off
shor
e pu
blic
pro
perty
. L
ocat
ed a
ppro
xim
atel
y at
187
9 ou
tlet o
f Ind
ian
Pass
. B
y N
ov.
1987
bea
ch
13,5
00
had
built
out
alm
ost t
o br
eakw
ater
. In
Feb
. '8
9 (3
0,00
0?)
cont
inue
s bu
ilt o
ut.
Bea
ch n
ouri
shm
ent 2
.1 m
iles,
52
5,00
0 ta
ken
from
sho
al o
ffsh
ore
John
s Pa
ss.
Gro
ins
adde
d.
Reh
ab, a
ncho
r gr
oin
nort
h si
de J
ohns
Pas
s?
Com
pute
r Mod
el a
naly
sis
of p
rism
of a
New
Pas
s at
Th
e N
arro
ws
(to re
plac
e pr
ior I
ndia
n Pa
ss)
by U
SF/
Tam
pa C
ente
r of M
ath
Mod
els.
2,00
0,00
0 ap
prox
.
Pass
Cle
arw
ater
Pas
sJo
hns
Pass
Blin
d Pa
ssN
ew P
ass
Pres
ent
872
mill
cu
ft79
5 68
w/ N
ew P
ass
810
768 67
145(
will
be s
tabl
ean
d sm
all)
Dan
's Is
land
Con
do(f
ront
ed b
y se
awal
l) sa
nd
nour
ishe
d by
City
und
er a
gree
men
t. Sa
nd la
ter
was
hed
away
& D
an's
Isla
nd s
ued
City
and
won
. (B
each
pro
files
take
n ly
ear
afte
r Ele
na s
how
Dan
's Is
land
bea
ch 1
5m w
ide
whi
le u
n wal
led
beac
h 20
0m
north
rebu
ilt to
50m
wid
e.)
1990
C
OE
Indi
an R
ocks
Bea
ch (3
mi-b
etw
een
Tow
nshi
p 30
S &
1,
300,
000
13,0
00,0
00In
dian
Sho
res)
nou
rishm
ent f
rom
off
shor
e M
ulle
t K
ey, n
orth
sid
e Eg
mon
t Cha
nnel
. Fo
llow
-on
stud
y of
er
osio
n be
ing
carr
ied
out b
y U
SF/U
SGS.
1991
C
OE
Indi
an S
hore
s (2
.9m
i) no
uris
hmen
t fro
m sa
me
sour
ce.
850,
000
13,0
00,0
00fo
r bot
h
1992
E C
OE
Nor
th R
edin
gton
Bea
ch/R
edin
gton
Sho
res
mai
nt.
3,50
0,00
0A
lso
cons
ider
ing
offs
hore
bre
akw
ater
s at
Indi
an R
ocks
"
2,54
6,00
0B
each
. & a
t nor
th R
edin
gton
Bea
ch.
1,20
0,00
0
NO
TE:
Bel
leai
r Shs
/Bea
ch -
very
lim
ited
publ
ic b
each
acc
ess.
Citi
es "
do th
eir o
wn"
.B
elle
air B
each
. - c
ondo
at n
orth
end
put
in ri
p-ra
p ar
ound
198
0. O
ther
wis
e, ju
st ra
ke/c
lean
. B
elle
air S
hs. -
Afte
r Ele
na ('
85) b
each
cam
e ba
ck m
ore
than
bef
ore.
:/
*a*
N/^
8"~
7^'
-i s>
yf
C^C
5k*S
N
/^N;x
A^N
!r^
-^
<'-v
yV7i
='-
n>...
»4
* ».
, r
« £
*' *
* «
* 2
/
, "
*
V4.
^
/ -'
*
/ v
. -
"
SA
ND
KE
Y
- N
OA
A C
hart
#1
1411
'.V:.*;
'. ' '
* ' *'
\ ":'*
' '?.
'tif
"f
£ S
»
SA
ND
KE
Y*
US
CG
S C
hart
#177
* 18
79vj en
7.7
RE
DIN
GT
ON
SH
OR
ES
CTY
. B
EA
CH
(Bef
ore
brea
kwat
er)
Cty
. aer
ial,
Apr
iM 9
84o
CD
\rVL
7.12
00
STO
RM
DA
TE
1848
(lO
Oye
ar)
1921
(S
Oye
ar)
Sept
. 1-7
19
50 E
ASY
DA
TE
1916
8. J
OH
NS
PASS
AU
THO
RIT
Y
IMPR
OV
EMEN
TS
Loca
l
1926
C
ity
1924
(27
?)
CO
E
1960
Mad
eira
B
each
John
s Pa
ss "
repo
rted
" cu
t by
seve
re tr
opic
al s
torm
.
Seco
ndar
y en
tran
ce a
t nor
th e
nd b
lind
Pass
clo
sed
by
pum
ping
san
d fr
om o
ffsh
ore
bar.
Bri
dge
acro
ss J
ohns
Pas
s (r
emov
ed 1
969)
Indi
an P
ass
clos
ed b
y fil
ling.
John
s Pa
ss d
redg
ed, m
ater
ial p
lace
d 7,
000y
ards
of
fsho
re s
outh
of d
redg
ed c
hann
el.
SAN
D
vol.y
ards
CO
ST,$
(94,
000)
1961
1961
1966
1968
GLA
DY
S19
68
1969
1971
Mad
eira
B
each
M
adei
ra
Bea
ch
CO
E
Cty
CO
E
Kin
g pi
le a
ncho
r gro
in (
500'
) no
rth s
ide
of Jo
hns
Pass
.Fi
ll fr
om Jo
hns
Pass
pla
ced
north
of g
roin
.Ex
pect
ed a
nnua
l mai
nten
ance
of g
roin
sys
tem
@ $
10,0
00.
300,
000
(30,
000)
John
s Pa
ss d
redg
ed (1
0'de
ep X
500
' w
ide
;8'd
eep
X 1
00 '
(77,
655)
w
ide
;6'd
eep
X 1
00 '
wid
e) to
Intra
coas
tal.
Spoi
l pla
ced
offs
hore
.
Rev
etm
ent o
n 92
0' o
f sou
th s
ide
of P
ass.
Off
shor
e Sa
nd (1
960,
196
6) m
igra
ted
to b
each
sou
th o
f Joh
ns
Pass
, for
min
g cr
esce
nt s
hape
d ba
r with
wat
er b
etw
een
bar &
be
ach,
kno
wn
as O
'Bri
en's
Lago
on.
New
brid
ge a
cros
s Jo
hns
Pass
.
Rem
oved
fill
from
sho
re c
onne
cted
bar
at n
orth
end
of
(75,
000)
Tr
easu
re Is
land
(O
'Bri
en's
Lago
on a
rea)
for 2
,000
' bea
ch
fill o
n Tr
easu
re Is
land
bet
wee
n 10
4 &
108
St.
106,
000
1972
AG
NES
1979
-85
CO
E
Afte
r '8
7
1990
CO
E
CO
E
John
s Pa
ss m
aint
enan
ce d
redg
ing,
use
d as
bea
ch f
ill o
n Tr
easu
re Is
land
& to
fill
O'B
rien
's La
goon
. In
clud
es
70,0
00 y
ds in
198
1 to
Tre
asur
e Is
land
bet
wee
n St
a 28
+50
and
Sta
60+5
0.
Reh
ab, a
ncho
r gro
in n
orth
sid
e Jo
hns
Pass
.
To d
redg
e Jo
hns
Pass
(lO
yr in
terv
al).
(230
,000
)
po
ro
8.3
John
s Pa
ssE
xcer
pt F
rom
NO
AA
Cha
rt #
1141
1
00
^'^
D^O
Gt^
^l
&&
'*}
'Mb
**
STO
RM
DA
TE
1848
DA
TE
1916
9. T
RE
ASU
RE
ISL
AN
D
AU
THO
RIT
Y
IMPR
OV
EMEN
TS
Loca
l
Sept
. 19
50
EA
SY19
60
1962
1964
1966
Trea
s Is
l
Trea
s. I
sl
Trea
s Is
l
CO
E
John
s Pa
ss "
repo
rted
" cu
t by
seve
re tr
opic
al s
torm
Seco
ndar
y en
tranc
e at
nor
th e
nd B
lind
Pass
clo
sed
by
pum
ping
san
d fr
om o
ffsh
ore
bar.
56 g
roin
s (s
ome
at s
outh
end
nea
r Blin
d Pa
ss)
Rep
orte
d in
196
6 - "
seem
not
to b
e ef
fect
ive"
.
Ston
e ru
bble
jetty
nor
th s
ide
Blin
d Pa
ss, 4
25' l
ong.
Suns
et B
each
add
ed s
and
dred
ged
from
Blin
d Pa
ss.
John
s Pa
ss c
hann
el d
redg
ed to
Intr
acoa
stal
(1
0'de
ep x
150
' w
ide
;8'd
eep
x 10
0 ' w
ide
;6'd
eep
x 10
0 ' w
ide)
. R
evet
men
t on
920'
of s
outh
sid
e of
Pas
s.
SAN
D
vol.y
ds
10,0
00
CO
ST,$
228,
000
18,0
00
6,50
0
1968
GLA
DY
S19
68
1968
1969
Trea
s Is
l
CO
E
1972
AG
NES
1985
ELE
NA
1971
1972
1976
1978
1979
-85
1983
1986
1990
No
Dat
e
COE
COE
COE
COE
COE
COE
COE
COE
Off
shor
e sa
nd (
1960
,196
6 Jo
hns
Pass
dre
dgin
g)
mig
rate
d to
bea
ch s
outh
of J
ohns
Pas
s fo
rmin
g cr
esce
nt
shap
ed b
ar w
ith w
ater
bet
wee
n ba
r & b
each
, kno
wn
as O
'Bri
en's
Lago
on.
Blin
d Pa
ss d
redg
ed.
9200
' of e
mer
genc
y be
ach
fill f
rom
600
' sou
th o
f 77
Ave
. 79
0,00
0[S
ta 0
+00]
(0.
3mi n
orth
of B
lind
Pass
) to
104
Ave
.[S
ta 9
2+00
]. So
urce
s: {
Pipe
line
dred
ge f
rom
Blin
d (1
08,0
0)Pa
ss. E
rode
d qu
ickl
y, d
ue to
fin
e gr
ain
size
. (B
orro
wfr
om 1
500-
2000
' off
shor
e so
uthe
rn e
nd o
f Tre
asur
e Is
land
. (6
82,0
00)
2,00
0'be
ach
fill f
rom
104
St.
[sta
92+O
OJ
to 1
08 S
t. 75
,000
41
,250
[S
tal 1
2+00
]fro
m s
hore
con
nect
ed b
ar a
t nor
th e
nd o
f Tr
easu
re I
slan
d. (
O'B
rien
's L
agoo
n ar
ea).
2,00
0' b
each
nou
rish
men
t for
m 8
3 St
. to
77 S
t.
S'ly
1.5
mi b
each
nou
rishe
d fo
rm o
ffsh
ore
borr
ow
380,
000
. 99
0,00
0 (s
ame
as 1
969)
. G
roin
#1
built
230
0' n
orth
of B
lind
Pass
G
roin
#2
(360
' lon
g) b
uilt
on n
orth
sid
e of
Blin
d Pa
ss.
2,00
0' n
orth
of G
roin
#1
nour
ishe
d fr
om B
lind
Pass
. 50
,000
G
roin
#2
rais
ed 2
-1/2
ft.
Bea
ch f
ill o
n Tr
easu
re I
slan
d &
to fi
ll O
'Bri
en's
Lag
oon
230,
000
from
Joh
ns P
ass
mai
nten
ance
dre
dgin
g. I
nclu
des
70,0
00yd
s on
320
0' [
Sta
28+5
0 to
Sta
60+
50]
nour
ishe
d in
198
1.
4,20
0' o
f sou
th e
nd T
reas
ure
Isla
nd n
ouris
hed
from
Blin
d 20
0,00
0 Pa
ss. G
roin
#2
exte
nded
130
' (to
tal 4
90').
Bea
ch re
nour
ishe
d fr
om B
lind
Pass
& P
asse
-a-G
rill
Pass
.
To d
redg
e Jo
hns
Pass
(10
yr i
nter
val).
Trea
sure
Isla
nd m
aint
enan
ce.
2,30
0,00
0
CO to
T«po
n~
Sprtn
gi1
10. B
LIN
D P
ASS
STO
RM
DA
TED
ATE
1873
AU
TH
OR
ITY
IM
PRO
VEM
ENTS
SAN
D
.vol
,yds
1916
1926
1935
1936
Loca
l
Cty
City
Blin
d Pa
ss a
ppro
x. 1
mile
nor
th o
f 19
36(p
rese
nt)
loca
tion.
G
radu
al s
outh
erly
mig
ratio
n of
ent
ranc
e w
ith a
t tim
es
2 en
tranc
es in
exi
sten
ce;
a N
'ly a
ltern
ate
entra
nce
has
open
ed
and
clos
ed s
ever
al ti
mes
, las
t clo
sure
in 1
935.
Seco
ndar
y en
tran
ce a
t nor
th e
nd B
lind
Pass
clo
sed
by p
umpi
ng
sand
from
off
shor
e ba
r. R
eope
ned.
Rec
lose
d by
192
1 st
orm
. R
eope
ned
in 1
930.
Las
t clo
sed
1935
.
Bui
lt br
idge
.
Alte
rnat
e en
tranc
e cl
osed
for l
ast t
ime.
Shor
t jet
ty b
uilt
on s
outh
sid
e of
Blin
d Pa
ss-f
ixed
loca
tion
of
Blin
d Pa
ss.
Shor
t cha
nnel
dre
dged
acr
oss
shoa
ls n
orth
of j
etty
.
CO
ST,$
1950
EA
SYK
ING
1968
GLA
DY
S
1972
AG
NES
1960
1957
-63
1962
1964
1968
1969
1972
1974
1975
1976
1977
1978
Trea
s Is
l So
me
Suns
et B
each
gro
ins
at s
outh
end
Tre
asur
e Is
land
.
Loc
al
Firs
t 930
' sou
th o
f Blin
d Pa
ss b
ulkh
eade
d.
City
St
one/
rubb
le-m
ound
gro
in/je
tty o
n no
rth s
ide
Blin
d Pa
ss
18,0
00
425'
lon
g.
Trea
s Is
l B
lind
Pass
dre
dged
; sa
nd p
lace
d on
Sun
set
Bea
ch.
(10,
000)
6,
500
(Tre
asur
e Is
land
)
City
B
lind
Pass
dre
dged
; san
d pl
aced
just
sou
th o
f Blin
d Pa
ss.
CO
E
Blin
d Pa
ss d
redg
ed;
sand
add
ed to
Sun
set B
each
. (1
08,0
00)
CO
E
Com
plet
ed th
e "s
econ
d no
uris
hmen
t" o
f Tre
as. I
slbe
ache
s. S
ourc
e w
as o
ffsh
ore
2,50
0' n
orth
and
2,5
00'
offs
hore
Blin
d Pa
ss.
(See
197
6 al
so.)
City
E
xten
ded
jetty
on
sout
h si
de o
f Blin
d Pa
ss f
rom
17
1'to
a to
tal o
f 261
'.
City
&Lo
cal
2 ki
ngpi
le g
roin
s an
d be
ach
fill f
rom
Blin
d Pa
ss p
lace
d (7
5,00
0)
just
sou
th o
f Blin
d Pa
ss.
CO
E
Gro
in (
#2)
on n
orth
sid
e B
lind
Pass
ext
ende
d to
360
'. 99
0,00
0 G
roin
(#1
) bui
lt on
Tre
asur
e Is
land
230
0'
north
of B
lind
Pass
,285
'.197
2 bo
rrow
are
a us
ed a
gain
for
197
6 be
ach
nour
ishm
ent c
ampa
ign.
Tot
al r
emov
ed in
bot
h of
fsho
re
(554
,849
) ca
mpa
igns
.
1975
fill
ero
ded
back
to p
re-1
975
posi
tion.
Blin
d Pa
ss c
ompl
etel
y cl
osed
by
shoa
ling.
p CO
1978
CO
E
1980
CO
E
1983
CO
E
1985
EL
EN
A19
86C
OE
1990
CO
E
Blin
d Pa
ss d
redg
ed; s
and
adde
d al
ong
2,00
0' o
f Tr
easu
re Is
land
nor
th o
f Gro
in #
1. B
lind
Pass
rat
e of
sh
oalin
g es
timat
ed a
s hi
gh a
s 75
,000
yd/
yr.
Gro
in
#2 (
north
sid
e B
lind
Pass
) ra
ised
2-l
/2ft
.
(50,
000)
Blin
d Pa
ss d
redg
ed ;
2,80
0' o
f bea
ch s
outh
of a
nd a
djac
ent
(143
,000
)to
Blin
d Pa
ss re
fille
d. A
lso
sand
fill
ed o
ffsh
ore
aspa
rtial
"br
eakw
ater
" ab
out
1,00
0' s
outh
of B
lind
Pass
. (Se
eae
rial p
hoto
pp.
23-4
in C
OE
198
0 E
EC
Sta
ge H
Doc
.) (1
00,0
00)
Rat
es o
f sho
alin
g co
ntin
ue a
s hi
gh a
s 75
,000
yd/
yr.
Blin
d Pa
ss d
redg
ed; m
ater
ial p
lace
d on
4,2
00' o
f sou
th e
nd
of T
reas
ure
Isla
nd (
Suns
et B
each
). G
roin
#2
(nor
th s
ide
Blin
d Pa
ss)
exte
nded
130
' to
tota
l 490
'.
Dre
dged
in 1
986;
mat
eria
l use
d fo
r bea
ch n
ouri
shm
ent
on T
reas
ure
Isla
nd a
nd L
ong
Key
(St
. Pet
e B
each
). B
lind
Pass
is n
ot F
eder
ally
mai
ntai
ned
but i
s a
borr
ow s
ourc
e fo
r be
ach
mat
eria
l. U
pham
Bea
ch re
nour
ishe
d.
Dre
dged
Blin
d Pa
ss.
Ren
ouri
shed
Uph
am B
each
. Pl
an
redo
eve
ry 3
yea
rs.
(75,
000)
(325
,000
)
1,50
0,00
0
1,50
0,00
0
10.4
10.5
Blin
d Pa
ssE
xcer
pt F
rom
NO
AA
Cha
rt #
1141
1
«*
* S
/
*'
x-O
C^
ftT
*"
2yV
^i
/
v^X
>^
<
^{^/./M
.l^^f ^<
^\
°4
'/""^
II|.H
»\^
A
0%
t >
^"X
. /
o»z
X
o/V
y,,
,,,_
__
__
__
a3.X
V
STO
RM
DA
TE
1950
EA
SY
KIN
G
DA
TE
1873
1936
1950
-60
1957
-63
1959
-60
1962
1966
11.
LO
NG
KE
Y
AU
TH
OR
ITY
IM
PRO
VEM
ENTS
City
City
Loca
l
City
City
CO
E
Blin
d Pa
ss a
ppro
x. 1
mile
nor
th o
f 19
36 (
pres
ent)
loca
tion.
Shor
t jet
ty b
uilt
on s
outh
sid
e of
Blin
d Pa
ss-f
ixed
loca
tion
of B
lind
Pass
.
Gro
ins
& s
eaw
all a
t sou
th e
nd (
Pass
e-a-
Gril
le).
Firs
t 930
' sou
th o
f Blin
d Pa
ss b
ulkh
eade
d.
Rub
ble-
mou
nd je
tty a
t Pas
se-a
-Gri
ll &
som
e st
orm
repa
ir.
Ext
ende
d Pa
ss-a
-Gri
lle je
tty a
nd a
dded
fish
ing
plat
form
. A
nnua
l bea
ch e
rosi
on c
ontr
ol c
ost.
Pass
e-a-
Gril
le c
hann
el d
redg
ed to
the
Intr
acoa
stal
(10
'dee
p x
150'
w;8
'dee
p x
100
' wid
e).
Rem
oved
20,
000y
ds.
No
follo
w-o
n m
aint
enan
ce re
quir
ed.
SAN
D
vol.y
ds
115,
000
23,0
00
36,5
0012
,000
1968
GLA
DY
S
1972
AG
NES
1964
1968
1974
1975
1976
1977
1978
1980
1985
EL
EN
A
1983
1984
1986
198-
1990
1992
E
City
City
City
City
& L
ocal
CO
E
CO
E
CO
E
CO
E
City
CO
E
CO
E
Sand
dre
dged
from
Blin
d Pa
ss p
lace
d on
Sun
set B
each
10
,000
(T
reas
ure
Isla
nd)
Blin
d Pa
ss d
redg
ed, p
lace
d ju
st s
outh
of B
lind
Pass
.
Ext
ende
d je
tty o
n so
uth
side
of B
lind
Pass
171
' to
a to
tal
of 2
61'.
2 ki
ngpi
le g
roin
s an
d be
ach
fill f
rom
Blin
d Pa
ss p
lace
dju
st s
outh
of B
lind
Pass
. 75
,000
Gro
in o
n no
rth s
ide
Blin
d Pa
ss e
xten
ded
to 3
60'.
1975
fill
sou
th o
f Blin
d Pa
ss e
rode
d ba
ck to
pre
-197
5 po
sitio
n.
Blin
d Pa
ss c
ompl
etel
y cl
osed
by
shoa
ling.
Blin
d Pa
ssdr
edge
d; m
ater
ial u
sed
on T
reas
ure
Isla
ndR
efill
ed 2
,800
' at n
orth
end
of i
slan
d ad
jace
nt to
Blin
d Pa
ss.
143,
000
Als
o sa
nd f
illed
off
shor
e as
par
tial
"bre
akw
ater
" ab
out
1,00
0' s
outh
of B
lind
Pass
. (Se
e ae
rial p
hoto
pp.
23-4
in C
OE
100
0,00
019
80 B
EC S
tage
H D
oc.)
Fill
from
dre
dgin
g of
Blin
dPa
ss.
Rat
es o
f sho
alin
g co
ntin
ue a
s hi
gh a
s 75
,000
yd/y
r.
Blin
d Pa
ss d
redg
ed; m
ater
ial
used
on
Trea
sure
Isl
and
Reh
abili
tate
d pv
t. an
chor
gro
in a
t sou
th e
nd o
f isl
and
(Pas
se-a
-Gri
lle je
tty).
Ren
ouri
sh P
asse
-a-G
rille
Bea
ch.
3,00
0
Add
ed P
ass-
a-G
rille
dun
e ar
ea s
and
fenc
ing
and
sea
oat p
lant
ing.
Ren
ouri
shed
N'ly
0.5
7mi L
ong
Key
Bea
ch, i
nclu
ding
. 32
5,00
0 U
pham
Bea
ch.
Ren
ouri
sh S
'ly 3
.6m
i
1,50
0,00
0
3,80
0,00
0
12. P
ASS
E-A
-GR
ILL
E P
ASS
Incl
udin
g th
e R
eefs
& S
hell
Kev
STO
RM
DA
TE
DA
TE
AU
THO
RIT
Y
IMPR
OV
EMEN
TS
Pass
e-a-
Gri
lle P
ass
has
two
entra
nce
pass
es, s
epar
ated
by
Shel
l Key
.
Nor
th C
hann
el19
26-4
8
1950
EASY
K
ING
1950
-60
1959
-60
1962
1966
City
City
City
CO
E
SAN
D
vol.y
ds
Shel
l Key
mig
rate
d 1,
800'
nor
th-e
ast
;Nor
th C
hann
el
wid
ened
fro
m 1
,550
' to
2,14
5' w
hile
Sou
th C
hann
el
narr
owed
from
640
' to
520'
.
Gro
ins
& s
eaw
all a
t sou
th e
nd P
asse
-a-G
rille
.
Rub
ble-
mou
nd je
tty a
t Pas
se-a
-Gri
lle &
som
e st
orm
repa
ir.
Ext
ende
d Pa
sse-
a-G
rille
jetty
and
add
ed f
ishi
ng p
latfo
rm.
Pass
e-a-
Gri
lle N
orth
Cha
nnel
dre
dged
to th
e In
trac
oast
al
(162
,000
) (1
0'de
ep X
150
' w
ide
;8'd
eep
X 1
00 '
wid
e).
Spoi
l pla
ced
in a
n of
f-sh
ore
disp
osal
site
alo
ng th
e ch
anne
l. N
o fo
llow
-on
mai
nten
ance
requ
ired.
CO
ST,$
1984
C
OE
Reh
abili
tate
d je
tty a
t sou
th e
nd o
f Pas
se-a
-Gril
le.
1986
B
orro
w re
mov
ed fo
r bea
ch re
nour
ishm
ent o
n Lo
ng K
eyan
d Tr
easu
re Is
land
.
Shel
l Key
. Sou
th C
hann
el. T
he R
eefs
. Bun
ces
Key
Shel
l Key
, Bun
ces
Key
are
san
d ke
ys.
The
Ree
fs a
re m
angr
ove
isla
nds
land
war
d of
the
oute
r key
s. N
o w
ork
done
.
From
sou
ther
ly e
dge
of P
asse
-a-G
rille
Nor
th C
hann
el, n
orth
erly
sid
e of
Bun
ces
Pass
. In
clud
e So
uth
Pass
e-a-
Gril
l Cha
nnel
. B
oth
Sout
h Pa
sse-
a-G
rille
&
Bun
ces
Pass
are
nat
ural
cha
nnel
s.
Bun
ces
Pass
Kno
wn
sinc
e 18
73.
A n
atur
al in
let a
cros
s B
oca
Cie
ga B
ay m
angr
ove
shal
low
s to
Tam
pa B
ay.
No
wor
k do
ne.
Lim
ited
boat
ing
use
beca
use
of 2
fix
ed b
ridge
s w
ith v
ertic
al c
lear
ance
lim
ited
to 1
6'.
r° Fo
..
" *-
",-
^ '
* '
^.-^
: H
' V..-
.:. -
..
^V
-^.r
a^^
/
"JW
,"
" "
. .,
/
^ ,
: =':
v<
."'''
\':^J
R^^
" %
;.Y#
MM
,»
- *
'&rt
*
s <
' «
J *
*
^/
^ y
-::%
-
K~
y**
...
" *T
- ,
5"
- ,
- *$
V .-
" *
..
» *
^;V
/:;>
-^^:;
:Vv%
a
, -
?,-
.. 3
S.«
« '.-
.-'
-
.. -
- ^^
a 3
'....!.';
' ''.
. '. -
' '
-%in
«
»
5
.,
*-«
* «
. ^»w
~
.1
.mm
m-'-
:'-
?: --:
---
-'^ v
,5\-%
-
.^s^
^f "
' '.^
v..-
^ iil
i^F
.'j;':
V^>,
;:.^
-fe
il-
J.
r.
"* ^<
~*
t'*
?jr
-' '
"
fl
»»
J "
' r^
S
r«
-
a'r
^ j
i'i^
^^
° »
- -
2 -
"'-^
I?"
- ~
s'^ -
.=."
-,
^r -
- ,
<»~
%J^
p('
- N
1j
/*~
'"
S
*
*J
' "'
'
....«
-
«-.
.i
l «
^.
_..
. .
v
. ...
.
. ."
....
vU
' ,3
^;
a *
, "
« e
^
s """",.
a S
* ^
, ^
"-J
* "
*" '"
*
r^S
3^
r°
s «
^
-^ >
3 rf
'*
'-r £
"" -j
n -
(Lj^
i\>
~x T
^^..
v:^
' !,<
*
r .''*" «.
S -1
*
= ".
''
^^V
'
-"'."' /
J
' ' -'
,
' "
" » ', .«. =
"<
' !A
,..
., ->
^^-
« ^
7f *
- =
a *
, s
,wi
*'--
,. -
* ~
* =
"
i 3
,5^
«"
* t
"^
"n'-S
^., .-
S _
^.^S
*1*
..
-s -S
-5 ' ''. "
O
e
. =
'r
t "
' *
' S
S U
~
^
'' 2
«
* *
. "
a
»f
*: 1
~
"
* B
LIN
D P
AS
S to
EG
MO
NT
KE
Y
" "
US
CG
S C
hart
#1
77
J
* 18
79
12.4
ro
In
Pass
-A-G
rille
/Nor
th C
hann
elI
I V\
\M.
.7 _ W
'"°J
Exc
erpt
From
NO
AA
Cha
rt #1
1411
" .
I ^S
X-v
-^-'
\\
\\
I
NO
TE
CN
OR
TH C
HA
NN
EL
The
cont
rolli
ng d
epth
was
10
feet
lor
« w
idth
ot
ISO
(Mt.
April
196
4
12.6
Bun
ces
Pass
Exc
erpt
Fro
m N
OA
A C
hart
#11
411
'-**-/
J '^
^Q
^
^*r^
5i^
^*Eo
\ *n
.
NO
TEC
NO
RTH
CH
AN
NE
L Th
e co
ntro
lling
dep
th W
M 9
Vi f
eet
12.8
CO
13, M
UL
LE
T K
EY
STO
RM
DA
TED
ATE
185-
?
1873
- m
id!9
00s
AU
TH
OR
ITY
IM
PRO
VEM
ENTS
SAN
D
vol.y
dsC
OST
,$
US
Fort
DeS
oto
built
by
Rob
ert E
. Lee
.
1940
1940
-45
Was
2 is
land
s se
para
ted
by a
n in
let.
Lat
er m
erge
dto
for
m th
e no
rth-
sout
h le
g of
Mul
let K
ey.
Lan
d po
ints
adja
cent
to th
e in
let s
hift
ed s
ome
1300
' lan
dwar
d,w
hile
the
north
& s
outh
end
s of
the
leg
rece
ded
abou
t 800
' &20
0' r
espe
ctiv
ely.
The
land
are
a ch
ange
d on
ly f
rom
510
to 4
65 a
cres
. T
here
was
no
chan
ge in
the
east
-wes
t leg
.O
ffsh
ore
6' &
12'
con
tour
s re
mai
ned
the
sam
e fr
om18
74 to
clo
sure
of t
he in
let i
n 19
40.
S'ly
of t
he m
idpo
int
fore
shor
e an
d of
fsho
re p
rofi
les
have
ste
epen
ed.
At s
outh
-wes
tpo
int s
hore
line
rece
ssio
n fr
om 1
875-
1964
was
600
'
Inle
t clo
sed.
Sho
re a
ttain
ed s
moo
th c
onca
ve c
onfig
urat
ion.
Wor
ld W
ar n
bom
bing
rang
e.
1948
C
ty
Purc
hase
d fr
om U
.S.
1951
C
OE
Initi
ated
Egm
ont C
hann
el d
redg
ing.
1962
-65
Cty
B
uilt
acce
ss c
ause
way
.
7,00
0,00
0M
aste
r rec
reat
ion
plan
est
imat
ed a
t $10
,000
,000
.
10,0
00,0
00
Spen
t $2,
500,
000
to 1
965.
Ins
talle
d be
ach,
gro
in, &
re
vetm
ent o
n so
uth
wes
t poi
nt.
Fille
d (e
xcep
t W'ly
140
0')
to e
lev.
5'-6
'(2'-4
' prio
r to
fill).
51
6,76
9 Fi
lled
recr
eatio
n be
ach.
Fill
ed p
rote
ctiv
e be
ach.
61
,000
14
,200
0 G
roin
-roc
k/co
nc. s
ht. p
ile c
ore
wal
l, 11
6' l
ong
with
sho
re
77,0
00
17,9
000
end
elev
.5',
slop
e do
wn
to e
lev.
-1'
at e
nd.
Rev
etm
ent-p
reca
st c
one,
inte
rlock
ing
bloc
ks 1
:3 s
lope
from
78
,365
m
l w to
+5'
.R
ecre
atio
nal P
ier
1000
' lon
g, 6
0' s
outh
of g
roin
, con
e/op
en
84,0
00
pile
with
dec
k @
12'
.
1973
C
OE
Mat
'1 fr
om T
ampa
Bay
dre
dgin
g pr
ojec
t dep
osite
d on
75
0,00
014
,000
' alo
ng w
este
rly s
hore
.
1977
C
OE
Rev
etm
ent b
uilt
on 2
500'
of t
ip o
f key
sou
th o
f Ft.
Des
oto.
(O
ver e
arlie
r rev
etm
ent?
)N
ouris
hed
wes
terly
sho
re f
rom
Tam
pa B
ay.
350,
000
Sout
h sh
ore
fille
d fr
om s
ame
sour
ce
12,0
00
CO fo
CO
CO
. \^ u
>rfs
!
13.4
STO
RM
DA
TE
14. E
GM
ON
T C
HA
NN
EL
DA
TE
AU
THO
RIT
Y
IMPR
OV
EMEN
TS
1757
Eg
mon
t Key
sur
veye
d by
Spa
nish
exp
lore
r Cel
l.
1848
E
gmon
t Key
Lig
htho
use
built
.
1864
E
gmon
t Key
for
tifie
d.
1875
U
SCG
Sur
vey.
Egm
ont K
ey "
expa
nded
" by
15-
20%
com
pare
d by
1757
.
1899
Eg
mon
t Key
for
tifie
d.
1907
M
an-m
ade
mod
s, b
egin
in T
ampa
Bay
acc
ess.
1917
E
gmon
t Key
for
tifie
d.
1951
-60
CO
E D
redg
ed m
ain
chan
nel (
10.4
m d
eep
X 1
22m
wid
e).
SAN
D
vol.y
dsC
OST
,$
1970
U
S A
utho
rizat
ion
by C
ongr
ess
to e
nlar
ge to
13.
1m d
eep
X15
2m w
ide
(Tam
pa H
arbo
r Dee
peni
ng P
roje
ct).
Qua
ntity
to
be
dred
ged
70 m
illio
n yd
s. Q
uant
ity d
redg
ed in
out
er
chan
nel
'51-
'81
13.5
mill
ion
yds.
In to
nnag
e Ta
mpa
is
3rd
larg
est e
xpor
t, 7t
h la
rges
t ove
rall
port
in U
S.
1975
Eg
mon
t Key
abo
ut th
e si
ze o
f 17
57.
1970
-81
CO
E D
redg
ed.
(13,
500,
000)
Incl
udes
1,7
500,
000
yd p
lace
d on
Mul
let K
ey to
197
7,
both
wes
t sho
re o
n G
ulf &
sou
th s
hore
alo
ng E
gmon
t C
hann
el.
Bul
k of
this
mat
eria
l pla
ced
in u
nder
wat
er s
ites
offs
hore
& in
Tam
pa B
ay.
See
App
endi
x fo
r san
d in
vent
ory
anal
ysis
by
CO
E in
this
are
a. D
eem
ed to
be
in
exce
ss o
f 30m
illio
n yd
s.
1989
-92
Egm
ont K
ey e
rodi
ng ra
pidl
y. P
assa
ge K
ey g
row
ing.
1992
St
ate
Egm
ont K
ey b
ecom
es S
tate
Par
k.
NO
TES:
- E
gmon
t Key
is in
Hill
sbou
roug
h Ct
y.- P
assa
ge K
ey is
in M
anat
ee C
ty.
This
Key
, bet
wee
n Eg
mon
t & A
nna
Mar
ia
com
es a
nd g
oes
over
a p
erio
d of
yea
rs.
- Ann
a M
aria
is in
Man
atee
Cty
.
N)
14.3
Ann
a-M
aria
/Pas
sage
Key
Inl
etE
xcer
pt F
rom
NO
AA
Cha
rt #
1141
1 &
114
25
NO
AA
WE
ATH
ER
RA
DIO
BR
OA
DC
AS
TS
CIT
Y
STA
TIO
N
FRE
O
(MM
:)
BR
OA
DC
AS
T TI
ME
S24
hou
rs
24 h
ou
fl f
ltily
24
hou
rs f
l»"r
T»m
p».
FH
K
MB
-32
Fort
Mye
ri
FU
WX
K-8
3C
lew
uto
n.
Fu
W
XM
-M
A-L BEACH RENOURISHMENT SAND SOURCES
The
Cor
ps o
f Eng
inee
rs h
as c
arrie
d on
a s
earc
h fo
r sa
nd s
ourc
es fo
r use
in re
plen
ishi
ng th
e Pi
nella
s be
ache
s si
nce
1960
. Ex
tens
ive
expl
orat
ion,
incl
udin
g co
re
borin
gs f
rom
Egm
ont K
ey n
orth
to A
nclo
te K
ey h
ave
indi
cate
d th
e av
aila
bilit
y of
suita
ble
beac
h re
plac
emen
t san
d as
follo
ws:
-Prin
cipa
l sou
rce-
Off
Egm
ont K
ey -
30 m
illio
n cu
bic
yard
s.
-Alte
rnat
e so
urce
- Sh
oals
off
Pas
se-a
-Gril
le &
Bun
ces
Pass
es -
8 m
illio
n cu
bic
yard
s.
-Oth
er s
pot s
ourc
es- L
imite
d am
ount
s in
the
vici
nity
of t
he P
asse
s. M
ade
up o
f sho
als
in p
roce
ss o
f byp
assi
ng th
e in
let a
nd n
avig
atio
n dr
edgi
ng o
f the
pas
s. O
n th
e or
der o
f 300
,000
cub
ic y
ards
per
pas
s.
The
test
pro
gram
and
dat
a is
sum
mar
ized
in C
OE'
s B
each
Ero
sion
Con
trol (
EEC
) Pro
ject
Rev
iew
stu
dy, P
inel
las
Cou
nty,
Sta
ge II
Doc
., D
ec.
1980
and
Lon
g K
ey S
egm
ent,
Add
endu
m V
, Sep
t. 19
85.
Atta
ched
are
:-C
ompo
site
Gra
in s
ize
dist
ribut
ions
, Pla
te D
-l &
Fig
. 4.
-Cor
e B
orin
g M
ap (s
how
ing
loca
tion
of p
rinci
pal b
orro
w a
reas
), Pl
ate
A-2
PINELLAS COUNTY EEC
COMPOSITE GRAIN SIZE DISTRIBUTIONS
O P/A-A-P/A-H (SAND KEY)n P/L-1 THRU P/L-6 (NORTH)A P/L-7 THRU P/L-14 (SOUTH)^PRINCIPAL BORROW AREA (EGMONT)O ALTERNATE BORROW AREA (PASSAGRILLE)
99.9
-1012
GRAIN SIZE (0 UNITS)
= 99
95
90
80
70
60
50
40
30
= 20
= 10
= 0.1
0.01
DC111CO DC < Oo
III O DC 111 Q.Ill
F
=> o
PLATE NO.D-1
A.2
LONG KEY SEGMENT PINELLAS COUNTY
BEC PROJECTCOMPOSITE GRAIN SIZE
DISTRIBUTIONS
A BLIND PASS BORROW n PASS A GRILLE BORROW O LONG KEY NATIVE